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Jordan Zimmerman edited comment on ZOOKEEPER-2901 at 9/21/17 6:55 PM: ---------------------------------------------------------------------- Update: I believe I have a mechanism to identify pre 3.5.4 files without changing {{FileTxnLog.VERSION}}. Every file (snapshot and transaction) has a header that maps to {{FileHeader.java}}. The field {{dbId}} isn't really used for anything. For snapshots it's -1 and transactions it's 0. So, we can easily use this. For post 3.5.3 files we can make dbId 1 for snapshots and 2 for transactions (or whatever). When loading older files, we can invalidate any sessions. Question: What is the best way to invalidate sessions when loading transactions and snapshot files? was (Author: randgalt): Update: I believe I have a mechanism to identify pre 3.5.4 files without changing `FileTxnLog.VERSION`. Every file (snapshot and transaction) has a header that maps to `FileHeader.java`. The field `dbId` isn't really used for anything. For snapshots it's -1 and transactions it's 0. So, we can easily use this. For post 3.5.3 files we can make dbId 1 for snapshots and 2 for transactions (or whatever). When loading older files, we can invalidate any sessions. Question: What is the best way to invalidate sessions when loading transactions and snapshot files? > Session ID that is negative causes mis-calculation of Ephemeral Type > -------------------------------------------------------------------- > > Key: ZOOKEEPER-2901 > URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2901 > Project: ZooKeeper > Issue Type: Bug > Components: server > Affects Versions: 3.5.3 > Environment: Running 3.5.3-beta in Docker container > Reporter: Mark Johnson > Assignee: Jordan Zimmerman > Priority: Blocker > > In the code that determines the EphemeralType it is looking at the owner > (which is the client ID or connection ID): > EphemeralType.java: > public static EphemeralType get(long ephemeralOwner) { > if (ephemeralOwner == CONTAINER_EPHEMERAL_OWNER) { > return CONTAINER; > } > if (ephemeralOwner < 0) { > return TTL; > } > return (ephemeralOwner == 0) ? VOID : NORMAL; > } > However my connection ID is: > header.getClientId(): -720548323429908480 > This causes the code to think this is a TTL Ephemeral node instead of a > NORMAL Ephemeral node. > This also explains why this is random - if my client ID is non-negative > then the node gets added correctly. -- This message was sent by Atlassian JIRA (v6.4.14#64029)